Crash in Qt event loop

[chimerax-bug-report@…]

The following bug report has been submitted:
Platform:        Linux-3.10.0-862.6.3.el7.x86_64-x86_64-with-glibc2.14
ChimeraX Version: 1.2.5 (2021-05-24 04:13:57 UTC)
Description
Last time you used ChimeraX it crashed.
Please describe steps that led to the crash here.
Fatal Python error: Segmentation fault

Thread 0x00007f46cadca700 (most recent call first):
  File "/programs/x86_64-linux/chimerax/1.2.5-c7/libexec/UCSF-ChimeraX/lib/python3.8/threading.py", line 306 in wait
  File "/programs/x86_64-linux/chimerax/1.2.5-c7/libexec/UCSF-ChimeraX/lib/python3.8/threading.py", line 558 in wait
  File "/programs/x86_64-linux/chimerax/1.2.5-c7/libexec/UCSF-ChimeraX/lib/python3.8/threading.py", line 1252 in run
  File "/programs/x86_64-linux/chimerax/1.2.5-c7/libexec/UCSF-ChimeraX/lib/python3.8/threading.py", line 932 in _bootstrap_inner
  File "/programs/x86_64-linux/chimerax/1.2.5-c7/libexec/UCSF-ChimeraX/lib/python3.8/threading.py", line 890 in _bootstrap

Current thread 0x00007f47f00cb740 (most recent call first):
  File "/programs/x86_64-linux/chimerax/1.2.5-c7/libexec/UCSF-ChimeraX/lib/python3.8/site-packages/chimerax/ui/gui.py", line 293 in event_loop
  File "/programs/x86_64-linux/chimerax/1.2.5-c7/libexec/UCSF-ChimeraX/lib/python3.8/site-packages/ChimeraX_main.py", line 866 in init
  File "/programs/x86_64-linux/chimerax/1.2.5-c7/libexec/UCSF-ChimeraX/lib/python3.8/site-packages/ChimeraX_main.py", line 1015 in 
  File "/programs/x86_64-linux/chimerax/1.2.5-c7/libexec/UCSF-ChimeraX/lib/python3.8/runpy.py", line 87 in _run_code
  File "/programs/x86_64-linux/chimerax/1.2.5-c7/libexec/UCSF-ChimeraX/lib/python3.8/runpy.py", line 194 in _run_module_as_main


Log:
UCSF ChimeraX version: 1.2.5 (2021-05-24)  
© 2016-2021 Regents of the University of California. All rights reserved.  
How to cite UCSF ChimeraX  

> open /home/xray/Desktop/210902_mor_starting_model_human-protein-aligned-
> unified.pdb

Chain information for 210902_mor_starting_model_human-protein-aligned-
unified.pdb #1  
---  
Chain | Description  
A | No description available  
B | No description available  
C | No description available  
D | No description available  
E | No description available  
F | No description available  
  

> select /F:27@CA

1 atom, 1 residue, 1 model selected  

> select up

6 atoms, 5 bonds, 1 residue, 1 model selected  

> select up

456 atoms, 468 bonds, 66 residues, 1 model selected  

> select up

2787 atoms, 2860 bonds, 356 residues, 1 model selected  

> select up

16394 atoms, 16601 bonds, 1246 residues, 1 model selected  

> style sel stick

Changed 16394 atom styles  

> select clear

Drag select of 3 atoms, 3 bonds  

> select up

7 atoms, 4 bonds, 3 residues, 1 model selected  

> select up

39 atoms, 37 bonds, 3 residues, 1 model selected  

> select up

717 atoms, 730 bonds, 81 residues, 1 model selected  

> select up

3282 atoms, 3359 bonds, 387 residues, 1 model selected  

> select up

16394 atoms, 16601 bonds, 1246 residues, 1 model selected  

> select up

16394 atoms, 16601 bonds, 1246 residues, 1 model selected  

> select up

16394 atoms, 16601 bonds, 1246 residues, 1 model selected  

> show sel cartoons

> show sel atoms

> hide sel atoms

> select clear

> select /F:1-44

306 atoms, 314 bonds, 44 residues, 1 model selected  

> delete sel

> open /mnt/data1/downloads/cryosparc_P211_J498_006_volume_map.mrc

Opened cryosparc_P211_J498_006_volume_map.mrc as #2, grid size 288,288,288,
pixel 0.88, shown at level 0.163, step 2, values float32  

> volume #2 level 0.3177

> ui tool show "Fit in Map"

Fit molecule 210902_mor_starting_model_human-protein-aligned-unified.pdb (#1)
to map cryosparc_P211_J498_006_volume_map.mrc (#2) using 16088 atoms  
average map value = 0.3369, steps = 40  
shifted from previous position = 0.013  
rotated from previous position = 0.0359 degrees  
atoms outside contour = 9224, contour level = 0.31774  
  
Position of 210902_mor_starting_model_human-protein-aligned-unified.pdb (#1)
relative to cryosparc_P211_J498_006_volume_map.mrc (#2) coordinates:  
Matrix rotation and translation  
0.99999984 -0.00036033 -0.00042550 0.07879609  
0.00036021 0.99999989 -0.00028583 -0.01817200  
0.00042560 0.00028568 0.99999987 -0.08296546  
Axis 0.45608745 -0.67921652 0.57502101  
Axis point 195.76929850 0.00000000 184.49902577  
Rotation angle (degrees) 0.03589753  
Shift along axis 0.00057375  
  

> volume #2 level 0.278

> volume #2 level 0.3146

> isolde start

> set selectionWidth 4

Chain information for 210902_mor_starting_model_human-protein-aligned-
unified.pdb  
---  
Chain | Description  
1.2/A | No description available  
1.2/B | No description available  
1.2/C | No description available  
1.2/D | No description available  
1.2/E | No description available  
1.2/F | No description available  
  
Done loading forcefield  
Opened cryosparc_P211_J498_006_volume_map.mrc as #1.1.1.1, grid size
288,288,288, pixel 0.88, shown at step 1, values float32  




OpenGL version: 3.3.0 NVIDIA 390.77
OpenGL renderer: Quadro P4000/PCIe/SSE2
OpenGL vendor: NVIDIA Corporation
Manufacturer: Supermicro
Model: X10SRA
OS: Scientific Linux 7.4 Nitrogen
Architecture: 64bit ELF
Virutal Machine: none
CPU: 12 Intel(R) Core(TM) i7-6850K CPU @ 3.60GHz
Cache Size: 15360 KB
Memory:
	              total        used        free      shared  buff/cache   available
	Mem:            31G        6.9G         16G        1.2G        7.6G         22G
	Swap:          8.0G        1.1G        6.9G

Graphics:
	02:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP104GL [Quadro P4000] [10de:1bb1] (rev a1)	
	Subsystem: NVIDIA Corporation Device [10de:11a3]	
	Kernel driver in use: nvidia
Locale: ('en_US', 'UTF-8')
PyQt5 5.15.2, Qt 5.15.2
Installed Packages:
    alabaster: 0.7.12
    appdirs: 1.4.4
    Babel: 2.9.1
    backcall: 0.2.0
    blockdiag: 2.0.1
    certifi: 2020.12.5
    cftime: 1.5.0
    chardet: 3.0.4
    ChimeraX-AddCharge: 1.0.1
    ChimeraX-AddH: 2.1.6
    ChimeraX-AlignmentAlgorithms: 2.0
    ChimeraX-AlignmentHdrs: 3.2
    ChimeraX-AlignmentMatrices: 2.0
    ChimeraX-Alignments: 2.1
    ChimeraX-AmberInfo: 1.0
    ChimeraX-Arrays: 1.0
    ChimeraX-Atomic: 1.13.2
    ChimeraX-AtomicLibrary: 3.1.3
    ChimeraX-AtomSearch: 2.0
    ChimeraX-AtomSearchLibrary: 1.0
    ChimeraX-AxesPlanes: 2.0
    ChimeraX-BasicActions: 1.1
    ChimeraX-BILD: 1.0
    ChimeraX-BlastProtein: 1.1
    ChimeraX-BondRot: 2.0
    ChimeraX-BugReporter: 1.0
    ChimeraX-BuildStructure: 2.5.2
    ChimeraX-Bumps: 1.0
    ChimeraX-BundleBuilder: 1.1
    ChimeraX-ButtonPanel: 1.0
    ChimeraX-CageBuilder: 1.0
    ChimeraX-CellPack: 1.0
    ChimeraX-Centroids: 1.1
    ChimeraX-ChemGroup: 2.0
    ChimeraX-Clashes: 2.1
    ChimeraX-Clipper: 0.16.0
    ChimeraX-ColorActions: 1.0
    ChimeraX-ColorGlobe: 1.0
    ChimeraX-ColorKey: 1.2.1
    ChimeraX-CommandLine: 1.1.4
    ChimeraX-ConnectStructure: 2.0
    ChimeraX-Contacts: 1.0
    ChimeraX-Core: 1.2.5
    ChimeraX-CoreFormats: 1.0
    ChimeraX-coulombic: 1.1.1
    ChimeraX-Crosslinks: 1.0
    ChimeraX-Crystal: 1.0
    ChimeraX-CrystalContacts: 1.0
    ChimeraX-DataFormats: 1.1
    ChimeraX-Dicom: 1.0
    ChimeraX-DistMonitor: 1.1.3
    ChimeraX-DistUI: 1.0
    ChimeraX-Dssp: 2.0
    ChimeraX-EMDB-SFF: 1.0
    ChimeraX-ExperimentalCommands: 1.0
    ChimeraX-FileHistory: 1.0
    ChimeraX-FunctionKey: 1.0
    ChimeraX-Geometry: 1.1
    ChimeraX-gltf: 1.0
    ChimeraX-Graphics: 1.0
    ChimeraX-Hbonds: 2.1
    ChimeraX-Help: 1.1
    ChimeraX-HKCage: 1.3
    ChimeraX-IHM: 1.0
    ChimeraX-ImageFormats: 1.1
    ChimeraX-IMOD: 1.0
    ChimeraX-IO: 1.0.1
    ChimeraX-ISOLDE: 1.2.2
    ChimeraX-Label: 1.0
    ChimeraX-LinuxSupport: 1.0
    ChimeraX-ListInfo: 1.1.1
    ChimeraX-Log: 1.1.2
    ChimeraX-LookingGlass: 1.1
    ChimeraX-Maestro: 1.8.1
    ChimeraX-Map: 1.0.2
    ChimeraX-MapData: 2.0
    ChimeraX-MapEraser: 1.0
    ChimeraX-MapFilter: 2.0
    ChimeraX-MapFit: 2.0
    ChimeraX-MapSeries: 2.0
    ChimeraX-Markers: 1.0
    ChimeraX-Mask: 1.0
    ChimeraX-MatchMaker: 1.2.1
    ChimeraX-MDcrds: 2.2
    ChimeraX-MedicalToolbar: 1.0.1
    ChimeraX-Meeting: 1.0
    ChimeraX-MLP: 1.1
    ChimeraX-mmCIF: 2.3
    ChimeraX-MMTF: 2.1
    ChimeraX-Modeller: 1.0.1
    ChimeraX-ModelPanel: 1.0.1
    ChimeraX-ModelSeries: 1.0
    ChimeraX-Mol2: 2.0
    ChimeraX-Morph: 1.0
    ChimeraX-MouseModes: 1.1
    ChimeraX-Movie: 1.0
    ChimeraX-Neuron: 1.0
    ChimeraX-Nucleotides: 2.0.1
    ChimeraX-OpenCommand: 1.5
    ChimeraX-PDB: 2.4.1
    ChimeraX-PDBBio: 1.0
    ChimeraX-PDBLibrary: 1.0.1
    ChimeraX-PDBMatrices: 1.0
    ChimeraX-PickBlobs: 1.0
    ChimeraX-Positions: 1.0
    ChimeraX-PresetMgr: 1.0.1
    ChimeraX-PubChem: 2.0.1
    ChimeraX-ReadPbonds: 1.0
    ChimeraX-Registration: 1.1
    ChimeraX-RemoteControl: 1.0
    ChimeraX-ResidueFit: 1.0
    ChimeraX-RestServer: 1.1
    ChimeraX-RNALayout: 1.0
    ChimeraX-RotamerLibMgr: 2.0
    ChimeraX-RotamerLibsDunbrack: 2.0
    ChimeraX-RotamerLibsDynameomics: 2.0
    ChimeraX-RotamerLibsRichardson: 2.0
    ChimeraX-SaveCommand: 1.4
    ChimeraX-SchemeMgr: 1.0
    ChimeraX-SDF: 2.0
    ChimeraX-Segger: 1.0
    ChimeraX-Segment: 1.0
    ChimeraX-SeqView: 2.3
    ChimeraX-Shape: 1.0.1
    ChimeraX-Shell: 1.0
    ChimeraX-Shortcuts: 1.0
    ChimeraX-ShowAttr: 1.0
    ChimeraX-ShowSequences: 1.0
    ChimeraX-SideView: 1.0
    ChimeraX-Smiles: 2.0.1
    ChimeraX-SmoothLines: 1.0
    ChimeraX-SpaceNavigator: 1.0
    ChimeraX-StdCommands: 1.3.1
    ChimeraX-STL: 1.0
    ChimeraX-Storm: 1.0
    ChimeraX-Struts: 1.0
    ChimeraX-Surface: 1.0
    ChimeraX-SwapAA: 2.0
    ChimeraX-SwapRes: 2.1
    ChimeraX-TapeMeasure: 1.0
    ChimeraX-Test: 1.0
    ChimeraX-Toolbar: 1.0.1
    ChimeraX-ToolshedUtils: 1.2
    ChimeraX-Tug: 1.0
    ChimeraX-UI: 1.7.6
    ChimeraX-uniprot: 2.1
    ChimeraX-UnitCell: 1.0
    ChimeraX-ViewDockX: 1.0
    ChimeraX-Vive: 1.1
    ChimeraX-VolumeMenu: 1.0
    ChimeraX-VTK: 1.0
    ChimeraX-WavefrontOBJ: 1.0
    ChimeraX-WebCam: 1.0
    ChimeraX-WebServices: 1.0
    ChimeraX-Zone: 1.0
    colorama: 0.4.3
    comtypes: 1.1.7
    cxservices: 1.0
    cycler: 0.10.0
    Cython: 0.29.21
    decorator: 5.0.9
    distlib: 0.3.1
    distro: 1.5.0
    docutils: 0.16
    filelock: 3.0.12
    funcparserlib: 0.3.6
    grako: 3.16.5
    h5py: 2.10.0
    html2text: 2020.1.16
    idna: 2.10
    ihm: 0.17
    imagecodecs: 2020.5.30
    imagesize: 1.2.0
    ipykernel: 5.3.4
    ipython: 7.18.1
    ipython-genutils: 0.2.0
    jedi: 0.17.2
    Jinja2: 2.11.2
    jupyter-client: 6.1.7
    jupyter-core: 4.7.1
    kiwisolver: 1.3.1
    line-profiler: 2.1.2
    lxml: 4.6.2
    lz4: 3.1.0
    MarkupSafe: 2.0.1
    matplotlib: 3.3.2
    msgpack: 1.0.0
    netCDF4: 1.5.4
    networkx: 2.5
    numexpr: 2.7.3
    numpy: 1.19.2
    numpydoc: 1.1.0
    openvr: 1.14.1501
    packaging: 20.9
    ParmEd: 3.2.0
    parso: 0.7.1
    pexpect: 4.8.0
    pickleshare: 0.7.5
    Pillow: 7.2.0
    pip: 21.0.1
    pkginfo: 1.5.0.1
    prompt-toolkit: 3.0.18
    psutil: 5.7.2
    ptyprocess: 0.7.0
    pycollada: 0.7.1
    pydicom: 2.0.0
    Pygments: 2.7.1
    PyOpenGL: 3.1.5
    PyOpenGL-accelerate: 3.1.5
    pyparsing: 2.4.7
    PyQt5-commercial: 5.15.2
    PyQt5-sip: 12.8.1
    PyQtWebEngine-commercial: 5.15.2
    python-dateutil: 2.8.1
    pytz: 2021.1
    pyzmq: 22.0.3
    qtconsole: 4.7.7
    QtPy: 1.9.0
    RandomWords: 0.3.0
    requests: 2.24.0
    scipy: 1.5.2
    setuptools: 50.3.2
    sfftk-rw: 0.6.7.dev1
    six: 1.15.0
    snowballstemmer: 2.1.0
    sortedcontainers: 2.2.2
    Sphinx: 3.2.1
    sphinxcontrib-applehelp: 1.0.2
    sphinxcontrib-blockdiag: 2.0.0
    sphinxcontrib-devhelp: 1.0.2
    sphinxcontrib-htmlhelp: 2.0.0
    sphinxcontrib-jsmath: 1.0.1
    sphinxcontrib-qthelp: 1.0.3
    sphinxcontrib-serializinghtml: 1.1.5
    suds-jurko: 0.6
    tables: 3.6.1
    tifffile: 2020.9.3
    tinyarray: 1.2.3
    tornado: 6.1
    traitlets: 5.0.5
    urllib3: 1.25.11
    wcwidth: 0.2.5
    webcolors: 1.11.1
    wheel: 0.36.0
    wheel-filename: 1.2.0

[Tom Goddard]

Crashed in the Qt event loop. No clues why. Suspiciously there is another Python thread waiting. What is that thread doing? Might be related to the crash.